diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 0847a7d40ee615cab2d8cdb710e4f63067c752fa..1489e9fa1a1439c630347b796044eacf0e8deed5 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -7,9 +7,15 @@ build-zynthbox-image-armhf:
   image: ubuntu:22.04@sha256:cb6ce0db39adc371523a22a0031aa978ad3efbb13a279b7608010c82f8ab214e
   stage: build
   script:
+    - set -x
+    
     - image_name="zynthbox_rpi4_buster_$(date "+%F_%H%M").img"
     - image_name_miko="zynthbox_miko_buster_$(date "+%F_%H%M").img"
     - log_file_name="$image_name.build.log"
+    
+    # Ensuring key security
+    - echo "Ensuring key security"
+    - chmod 600 ${SSH_KEY_PUB_ZYNTHBOX_IO}
 
     # Update and install dependencies
     - echo "# Update and install dependencies"
@@ -28,43 +34,44 @@ build-zynthbox-image-armhf:
 
     # Download prebuilt realtime kernel
     - echo "# Download prebuilt realtime kernel"
-    - wget "http://unofficialpi.org/Distros/RealtimePi/2021-06-15_2021-05-07-realtimepi-buster-armhf-lite-0.5.0.zip" -P ./ZynthianOS/src/image
+    # - wget "http://unofficialpi.org/Distros/RealtimePi/2021-06-15_2021-05-07-realtimepi-buster-armhf-lite-0.5.0.zip" -P ./ZynthianOS/src/image
+    - wget "https://pub.zynthbox.io/.ci-build-dependency-downloads/2023-01-11_2020-02-13-realtimepi-buster-armhf-lite-0.6.0.zip" -P ./ZynthianOS/src/image
     
-    # Build image
-    - echo "# Build image"
+    # Build rpi4 image
+    - echo "# Build rpi4 image"
     - cd ./ZynthianOS/src
     - ../../CustomPiOS/src/update-custompios-paths
     - bash -x ./build_dist
     - mv ./workspace/*.img ./workspace/$image_name
     - echo "Image Size -> $(du -h ./workspace/$image_name)"
+    # Compress rpi4 image
+    - echo "# Compress image"
+    - xz -zv --threads=12 --memory=100% ./workspace/$image_name
+    - echo "Compressed rpi4 Image Size -> $(du -h ./workspace/$image_name.xz)"
+    # Push compressed rpi4 image to pub.zynthbox.io
+    - echo "# Push compressed rpi4 image to pub.zynthbox.io"
+    - scp -P 3138 -i "$SSH_KEY_PUB_ZYNTHBOX_IO" -o "StrictHostKeyChecking no" "./workspace/$image_name.xz" zynthbox@pub.zynthbox.io:/mnt/pub_zynthbox_io_volume/ISOs/.ci-testing-isos/
 
     # Build miko image
     - echo "# Build Miko image"
-    - cp ./workspace/$image_name ./workspace/$image_name_miko
-    - loopdevice=$(losetup --show -fP ./workspace/$image_name_miko)
+    - cp -v ./workspace/$image_name ./workspace/$image_name_miko
+    - root_start=$(fdisk -lu ./workspace/$image_name_miko | grep $image_name_miko.img2 | awk '{print $2}')
+    - root_size=$(fdisk -lu ./workspace/$image_name_miko | grep $image_name_miko.img2 | awk '{print $4}')
+    - boot_start=$(fdisk -lu ./workspace/$image_name_miko | grep $image_name_miko1 | awk '{print $2}')
+    - boot_size=$(fdisk -lu ./workspace/$image_name_miko | grep $image_name_miko1 | awk '{print $4}')
     - mountdir=$(mktemp -d)
-    - mount ${loopdevice}p2 $mountdir
-    - mount ${loopdevice}p1 $mountdir/boot
-    - mount --bind /dev $mountdir/dev
-    - mount --bind /dev/pts $mountdir/dev/pts
-    - mount --bind /proc $mountdir/proc
-    - mount --bind /sys $mountdir/sys
-    - chroot $mountdir apt install zynthbox-z2-setup
-    - umount $mountdir/boot/ $mountdir/dev/pts $mountdir/dev/ $mountdir/proc/ $mountdir/sys/
-    - unmount $mountdir
-    - losetup -D $loopdevice
-
-    # Compress image
-    - echo "# Compress image"
-    - xz -zv --threads=12 --memory=100% ./workspace/$image_name
-    - echo "Compressed Image Size -> $(du -h ./workspace/$image_name.xz)"
+    - sudo mount -o loop,offset=$(($root_start * 512)),sizelimit=$(($root_size * 512)) ./workspace/$image_name_miko $mountdir
+    - sudo mount -o loop,offset=$(($boot_start * 512)),sizelimit=$(($boot_size * 512)) ./workspace/$image_name_miko $mountdir/boot
+    - sudo mount --bind /dev $mountdir/dev
+    - sudo mount --bind /dev/pts $mountdir/dev/pts
+    - sudo mount --bind /proc $mountdir/proc
+    - sudo mount --bind /sys $mountdir/sys
+    - sudo chroot $mountdir apt install zynthbox-z2-setup
+    - sudo umount $mountdir/boot/ $mountdir/dev/pts $mountdir/dev/ $mountdir/proc/ $mountdir/sys/
+    - sudo umount $mountdir
+    # Compress miko image
     - xz -zv --threads=12 --memory=100% ./workspace/$image_name_miko
-    - echo "Compressed Image Size -> $(du -h ./workspace/$image_name_miko.xz)"
-
-    # Ensuring key security
-    - echo "Ensuring key security"
-    - chmod 600 ${SSH_KEY_PUB_ZYNTHBOX_IO}
-
-    # Push compressed image to pub.zynthbox.io
-    - echo "# Push compressed image to pub.zynthbox.io"
-    - scp -P 3138 -i "$SSH_KEY_PUB_ZYNTHBOX_IO" -o "StrictHostKeyChecking no" "./workspace/$image_name.xz" "./workspace/$image_name_miko.xz" zynthbox@pub.zynthbox.io:/mnt/pub_zynthbox_io_volume/ISOs/.ci-testing-isos/
+    - echo "Compressed miko Image Size -> $(du -h ./workspace/$image_name_miko.xz)"
+    # Push compressed miko image to pub.zynthbox.io
+    - echo "# Push compressed miko image to pub.zynthbox.io"
+    - scp -P 3138 -i "$SSH_KEY_PUB_ZYNTHBOX_IO" -o "StrictHostKeyChecking no" "./workspace/$image_name_miko.xz" zynthbox@pub.zynthbox.io:/mnt/pub_zynthbox_io_volume/ISOs/.ci-testing-isos/